Datasheet

70
75
80
85
90
95
100
2.5 3 3.5 4 4.5 5 5.5 6
V
O
= 1.8 V,
L = 4.7 µH,
C
O
= 22 µF
I
L
= 150 mA
I
L
= 300 mA
Efficiency − %
V
I
− Input Voltage − V
I
L
= 1 mA
40
45
50
55
60
65
70
75
80
85
90
95
100
0.01 0.1 1 10 100 1000
V
O
= 1.5 V,
L = 4.7 µH,
C
O
= 10 µF
V
I
= 2.7 V
V
I
= 5 V
Efficency - %
I
L
- Load Current - mA
V
I
= 3.7 V
0
5
10
15
20
25
2.5 3 3.5 4 4.5 5 5.5 6
T
A
= 85°C
T
A
= 25°C
T
A
= −40°C
N0 Load Quiescent Current −
V
I
− Input Voltage − V
Aµ
1130
1140
1150
1160
1170
1180
1190
−40 −30 −20 −10 0 10 20 30 40 50 60 70 80
T
A
− Temperature − °C
V
I
= 3.6 V
V
I
= 6 V
V
I
= 2.5 V
f − Switching Frequency − kHz
TPS62220 , , TPS62221 , , TPS62222
TPS62223 , TPS62224 , TPS62225
TPS62227 , TPS62228 , TPS62229
www.ti.com ....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT INPUT VOLTAGE
Figure 3. Figure 4.
NO LOAD QUIESCENT CURRENT SWITCHING FREQUENCY
vs vs
INPUT VOLTAGE TEMPERATURE
Figure 5. Figure 6.
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TPS62229